[Custom Logs] Implement input parameter exclude_files

[EmiBruno]

• Enhancement

What does this PR do?

Expose exclude_files option for the Custom Logs integration.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

How to test this PR locally

1. Build package and startup test environment:

cd package/log
elastic-package build
elastic-package stack up -v -d

2. Add a new "Custom Logs" integration to a policy
3. Verify if the correct logs are collected by the datastream

Related issues

• Closes [Custom Logs] Implement input parameter exclude_files #7939

Screenshots

[elasticmachine]

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Build stats

• Start Time: 2023-09-25T12:22:57.385+0000

• Duration: 14 min 12 sec

🤖 GitHub comments

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[elasticmachine]

Pinging @elastic/elastic-agent (Team:Elastic-Agent)

[rdner]

Could you please attach a screenshot of the configuration page for this new value. Should be a part of the PR description.

[EmiBruno]

Could you please attach a screenshot of the configuration page for this new value. Should be a part of the PR description.

@rdner I uploaded the screenshots in the PR description.

[elasticmachine]

Package log - 2.3.0 containing this change is available at https://epr.elastic.co/search?package=log